/**
  * Add a period cohort indicator to the report definition with dimension categories.
  *
  * @param CohortIndicator
  */
 public void addIndicator(CohortIndicator indicator, String dimensionCategories) {
   addIndicator(indicator.getUuid(), indicator.getName(), indicator, dimensionCategories);
 }
 /**
  * Add a period cohort indicator to the report definition with no dimension categories.
  *
  * @param periodCohortIndicator
  */
 public void addIndicator(CohortIndicator indicator) {
   addIndicator(
       indicator.getUuid(), indicator.getName(), indicator, new HashMap<String, String>());
 }